Calibrations and T–Duality |
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Authors: | Florian Gmeiner Frederik Witt |
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Institution: | 1. NIKHEF, Kruislaan 409, 1098 SJ, Amsterdam, The Netherlands 2. NWF I – Mathematik, Universit?t Regensburg, D-93040, Regensburg, Germany
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Abstract: | For a subclass of Hitchin’s generalised geometries we introduce and analyse the concept of a structured submanifold which
encapsulates the classical notion of a calibrated submanifold. Under a suitable integrability condition on the ambient geometry,
these generalised calibrated submanifolds minimise a functional occurring as D–brane energy in type II string theories. Further,
we investigate the behaviour of calibrated cycles under T–duality and construct non–trivial examples. |
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